Not sure how active this group is, but it includes a number of lively scholars: Michelle Bastian, Rick De Vos, Donna Haraway, James Hatley, Deborah Bird Rose, Mick Smith, and Thom van Dooren. http://extinctionstudies.org/

"Talk of mysteries! Think of our life in nature — daily to be shown matter, to come in contact with it — rocks, trees, wind on our cheeks! the solid earth! the actual world! the common sense! Contact! Contact! Who are we? Where are we?" —Henry David Thoreau